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Alja [10]
3 years ago
7

5x^{2} -60 = 20 Solve by using the quadratic formula PLZ help

Mathematics
1 answer:
almond37 [142]3 years ago
3 0

Answer: x=4,-4 Solve the equation for x by finding a, b, and c of the quadratic then applying the quadratic formula

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Which choice is the equation of a line that passes through (9, -3) and is parallel to the line represented by this equation? y=5
miskamm [114]

Answer:

y+3=\frac{5}{3}(x-9)  or  y=\frac{5}{3}x-18

Step-by-step explanation:

step 1

Find the slope of the line parallel to the given line

we know that

If two lines are parallel, then their slopes are the same

we have

y=\frac{5}{3}x-4

therefore

The slope m of the line parallel to the given line is

m=\frac{5}{3}

step 2

Find the equation of the line in point slope form

y-y1=m(x-x1)

we have

m=\frac{5}{3}

point\ (9,-3)

substitute

y+3=\frac{5}{3}(x-9) ----> equation of the line in point slope form

step 3

Find the equation of the line in slope intercept form

y=mx+b

we have

y+3=\frac{5}{3}(x-9)

Isolate the variable y

y+3=\frac{5}{3}x-15

y=\frac{5}{3}x-15-3

y=\frac{5}{3}x-18

7 0
3 years ago
Which decimal is equivalent to
antiseptic1488 [7]

Answer:

4.75

Step-by-step explanation:

19 goes into 4 4 times, so we are left with 4 3/4. 3/4 is 0.75, so we have 4.75 as our answer.

8 0
3 years ago
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Ahmed wrote the two expressions below.
Vsevolod [243]
Put an equal sign between the two expressions, and solve for x
3 0
3 years ago
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Which expressions below equal a rational number? Choose all that apply.
inn [45]

Answer:

2,3 and 4 are rational

Step-by-step explanation:

5 0
3 years ago
I have no idea how to solve this
zhuklara [117]

Answer: 8


Step-by-step explanation:

it's a rectangle, both the longer sides are the same and both the shorter sides are the same. so the opposite side has to equal 6, to get there we need to solve the equation, I did a few and ended up finding the correct answer to be 8. Since:

2*8-10=6

Therefore, both sides are now equal.

Ps- If you wouldn't mind, could you please help me out by marking Brainliest? I hate to ask but I only need one more before I rank up, and I'm so close!!

5 0
3 years ago
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